linux-kernel - [PATCH v1 09/19] staging: media: tegra-video: vi: add flip controls only if no source controls are provided

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Message-ID: <20250819121631.84280-10-clamor95@gmail.com>
Date: Tue, 19 Aug 2025 15:16:21 +0300
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Thierry Reding <thierry.reding@...il.com>,
	Thierry Reding <treding@...dia.com>,
	Mikko Perttunen <mperttunen@...dia.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Sowjanya Komatineni <skomatineni@...dia.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Peter De Schrijver <pdeschrijver@...dia.com>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Svyatoslav Ryhel <clamor95@...il.com>,
	Dmitry Osipenko <digetx@...il.com>,
	Charan Pedumuru <charan.pedumuru@...il.com>
Cc: linux-media@...r.kernel.org,
	linux-tegra@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-staging@...ts.linux.dev
Subject: [PATCH v1 09/19] staging: media: tegra-video: vi: add flip controls only if no source controls are provided

Add HFLIP and VFLIP from SoC only if camera sensor does not provide those
controls.

Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
---
 drivers/staging/media/tegra-video/vi.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 4f67adc395ac..61b65a2c1436 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -961,6 +961,7 @@ static int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan)
 	}
 #else
 	struct v4l2_subdev *subdev;
+	struct v4l2_ctrl *hflip, *vflip;
 
 	/* custom control */
 	v4l2_ctrl_new_custom(&chan->ctrl_handler, &syncpt_timeout_ctrl, NULL);
@@ -986,11 +987,13 @@ static int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan)
 		return ret;
 	}
 
-	if (chan->vi->soc->has_h_v_flip) {
+	hflip = v4l2_ctrl_find(subdev->ctrl_handler, V4L2_CID_HFLIP);
+	if (chan->vi->soc->has_h_v_flip && !hflip)
 		v4l2_ctrl_new_std(&chan->ctrl_handler, &vi_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
-		v4l2_ctrl_new_std(&chan->ctrl_handler, &vi_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
-	}
 
+	vflip = v4l2_ctrl_find(subdev->ctrl_handler, V4L2_CID_VFLIP);
+	if (chan->vi->soc->has_h_v_flip && !vflip)
+		v4l2_ctrl_new_std(&chan->ctrl_handler, &vi_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
 #endif
 
 	/* setup the controls */
-- 
2.48.1